17–22 May 2026
C.I.D
Europe/Zurich timezone

Study of a dual-feed TM020-mode Cavity for the Super Tau-Charm Facility

TUP7610
19 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC7.T06: Normal Conducting RF Poster session

Speaker

Chengzhe Wang (University of Science and Technology of China)

Description

The TM020-mode cavity offers a high quality factor, a large shunt impedance, and effective higher order modes (HOMs) damping, while maintaining a compact longitudinal structure. However, in single-input cavities, the coupling iris experiences excessive thermal loading as the input power increases, and insufficient cooling eventually degrades cavity performance. To address this issue, we developed a two-input cavity design that reduces the power handled by each input coupler while preserving the total input power. This configuration improves field symmetry and suppresses leakage of the operating mode. The optimized two-input cavity operates at 499.7 MHz, achieves a quality factor of 60,000, provides a shunt impedance above 5 MΩ, and maintains a leakage rate below 1%.

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Author

Li Sun (University of Science and Technology of China)

Co-authors

Chengzhe Wang (University of Science and Technology of China) Yelong Wei (University of Science and Technology of China) Yihao Zhang (University of Science and Technology of China) Zhicheng Huang (University of Science and Technology of China)

Presentation materials

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